CVE Explorer

CVE-2026-48821

Shaarli is a personal bookmarking service. Versions 0.16.1 and prior contain a DOM-based Cross-Site Scripting (XSS) vulnerability in the Thumbnail Synchronizer feature. When an administrator runs the thumbnail update process, malicious bookmark titles are returned via an AJAX response and inserted into the DOM using innerHTML without proper sanitization. The issue originates from the interaction between the backend thumbnail update endpoint and the frontend JavaScript responsible for rendering u

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5753cb45c2663ef67aedfe85b5d8f837d92c5a4f4718679d1723352f500124df

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"Shaarli","vendor":"shaarli","versions":[{"status":"affected","version":"< 0.16.2"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:c59d08dd03a3026244aec7fc611fa72adeec8048fb73afcafe05d1b798b24344 · sha256:cfd1c419825d83fb… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":5.8,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:c59d08dd03a3026244aec7fc611fa72adeec8048fb73afcafe05d1b798b24344 · sha256:cfd1c419825d83fb… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:c59d08dd03a3026244aec7fc611fa72adeec8048fb73afcafe05d1b798b24344 · sha256:cfd1c419825d83fb… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/shaarli/Shaarli/releases/tag/v0.16.2","tags":["x_refsource_MISC"],"url":"https://github.com/shaarli/Shaarli/releases/tag/v0.16.2"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:c59d08dd03a3026244aec7fc611fa72adeec8048fb73afcafe05d1b798b24344 · sha256:cfd1c419825d83fb… · /containers/cna/references/1

{"name":"https://github.com/shaarli/Shaarli/security/advisories/GHSA-mw63-f9qj-c5h3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/shaarli/Shaarli/security/advisories/GHSA-mw63-f9qj-c5h3"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:c59d08dd03a3026244aec7fc611fa72adeec8048fb73afcafe05d1b798b24344 · sha256:cfd1c419825d83fb… · /containers/cna/references/0

{"tags":["exploit"],"url":"https://github.com/shaarli/Shaarli/security/advisories/GHSA-mw63-f9qj-c5h3"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:c59d08dd03a3026244aec7fc611fa72adeec8048fb73afcafe05d1b798b24344 · sha256:cfd1c419825d83fb… · /containers/adp/0/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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